to blow up a car bomb in downtown chicago appears in federal court today. fbi investigators say the teenager parked a jeep cherokee outside a bar friday night and walked away squeezing what he thought was the trigger. he was busted as part of an fbi sting. undercover agents say they gave him plenty of chances to abandon the plan. but say he was determined to go forward. >>> president obama and republican hopeful mitt romney hit the campaign trail again today. after a week largely focused on the latest violence in the middle east. expect an uptick in the war of word over everything from trade with china to immigration, and of course, the economy. here is abc's karen travers. >> reporter: so far the economy has dominated the race for the white house. but last week, a rare detour in the foreign policy after the deadly attack in libya that left an american ambassador dead and the violent protests across the middle east. mitt romney slammed the obama administration's policies in the region. >> the world need american leadership, the middle east needs american leadership. >> reporter: the

flights were delayed. the airport is open and operating. >>> the fbi is looking into the police killing of an unarmed wheelchair-bound amputee in houston. the police officer who fired the fatal shot says he was cornered by the wheelchair and feared his partner was threatened. it turned out the dead man was holding only a ballpoint pen. civil rights groups says it is just another example of excessive force. >> this man wants us to believe that a man in a wheelchair with a writing pen in his hand was such a threat that you felt deadly force was necessary. >> the victim apparently suffered from mental health issues and had become agitated and angry before police were called. >>> a former university of alabama professor who admitted she gunned down three colleagues faces life in prison. amy bishop pled guilty, being spared the death penalty, she pled guilty and was. bishop did not speak in court. her attorneys say she was sorry for the victims and families. still, she could face a trial in massachusetts charged in the 1986 killing of her 18-year-old brother. >>> it looked like high tide at